public function index()
{
$promises = call_user_func(function () {
foreach ($this->usernames as $username) {
(yield $this->client->requestAsync('GET', 'https://api.github.com/users/' . $username));
}
});
// Wait till all the requests are finished.
\GuzzleHttp\Promise\all($promises)->then(function (array $responses) {
$this->profiles = array_map(function ($response) {
return json_decode($response->getBody(), true);
}, $responses);
})->wait();
// Return JSON response
$response = new Response();
// StreamInterface objects are not immutable!
$response->getBody()->write($this->html());
return $response->withHeader('Content-type', 'text/html');
}
/**
* @return static
*/
public function index()
{
$promises = array_map(function ($username) {
$url = 'https://api.github.com/users/' . $username;
return $this->client->sendAsync(new Request('GET', $url));
// return $this->client->requestAsync('GET', $url);
}, $this->usernames);
// Wait till all the requests are finished.
\GuzzleHttp\Promise\all($promises)->then(function (array $responses) {
$this->profiles = array_map(function ($response) {
return json_decode($response->getBody(), true);
}, $responses);
})->wait();
// Return JSON response
$response = new \Zend\Diactoros\Response();
// StreamInterface objects are not immutable!
$response->getBody()->write(json_encode($this->profiles));
return $response->withHeader('Content-Type', 'application/json');
}
public function testAllThrowsWhenAnyRejected()
{
$a = new Promise();
$b = new Promise();
$c = new Promise();
$d = \GuzzleHttp\Promise\all([$a, $b, $c]);
$b->resolve('b');
$a->reject('fail');
$c->resolve('c');
$d->then(function ($value) use(&$result) {
$result = $value;
}, function ($reason) use(&$result) {
$result = $reason;
});
P\queue()->run();
$this->assertEquals('fail', $result);
}
public static function destroyAsync($ids)
{
// We'll initialize a count here so we will return the total number of deletes
// for the operation. The developers can then check this number as a boolean
// type value or get this total count of records deleted for logging, etc.
$ids = is_array($ids) ? $ids : func_get_args();
// We will actually pull the models from the database table and call delete on
// each of them individually so that their events get fired properly with a
// correct set of attributes in case the developers wants to check these.
$tasks = [];
foreach ($ids as $id) {
if ($model = static::find($id)) {
$tasks[] = $model->deleteAsync($id);
}
}
return \GuzzleHttp\Promise\all($tasks)->then(function ($results) {
$count = 0;
foreach ($results as $result) {
if ($result) {
$count++;
}
}
return $count;
});
}
public function onKernelController(FilterControllerEvent $event)
{
if (!$event->isMasterRequest()) {
return;
}
$request = $event->getRequest();
if (!$request->attributes->has('_api')) {
return;
}
/** @var Api $api */
$api = $request->attributes->get('_api');
$subRequests = $this->getSubRequests($request);
$bulk = $api->isBulkable() && $subRequests;
$stream = ($api->isStreamable() || $bulk) && $this->shouldStream($request);
if (!$bulk && !$stream) {
$request->attributes->set('stream', $this->noop);
return;
}
// This listener will unwind/spread the calls, so don't trigger other Api listeners.
$request->attributes->remove('_api');
if ($stream) {
$headers = ['content-type' => 'application/json; boundary=NL', 'x-accel-buffering' => 'no'];
} else {
$headers = ['content-type' => 'application/json'];
}
if ($subRequests) {
$event->setController(function () use($request, $headers, $subRequests, $stream) {
return new StreamedResponse(function () use($request, $subRequests, $stream) {
$promises = [];
foreach ($subRequests as $i => $requestParams) {
// Forward the query string without the 'payload', and put all the parameters in the body.
$query = $request->query->all();
if (isset($query['payload'])) {
unset($query['payload']);
}
$subRequest = $request->duplicate([], $requestParams);
// Also force-make it a POST request, so it can contain a body.
$subRequest->setMethod('POST');
$subRequest->attributes->set('stream', $stream ? $this->createStreamer($i) : $this->noop);
/* @var PromiseInterface $promise */
$promises[] = $promise = $this->httpKernel->handle($subRequest, HttpKernelInterface::SUB_REQUEST, true, false);
if ($stream) {
$streamer = $this->createStreamer($i);
$promise->then(function (Response $response) use($streamer) {
$streamer($response->getContent(), true);
});
}
}
$responses = \GuzzleHttp\Promise\all($promises)->wait();
if (!$stream) {
echo '[';
for (reset($responses); $response = current($responses); next($responses)) {
echo $response->getContent();
if (current($responses)) {
echo ',';
}
}
echo ']';
}
}, 200, $headers);
});
} else {
$event->setController(function () use($request, $headers) {
return new StreamedResponse(function () use($request) {
$request->attributes->set('stream', $this->createStreamer());
// We duplicate the request because the profiler component's token keeps a reference to the parent request's token,
// creating an infinite loop when attempting to display profiler info.
$response = $this->httpKernel->handle($request->duplicate(), HttpKernelInterface::SUB_REQUEST, true, true);
// The streamer outputs a new line as the ending delimiter. In single action calls, the ending line should be
// the actual response without a new line at the end. That's why streaming single calls have a resulting
// response, but bulk calls don't have one.
echo $response->getContent();
}, 200, $headers);
});
}
}
/**
* Creates a Dynamic Large Object by chunking a file into smaller segments and uploading them into a holding
* container. When this completes, a manifest file is uploaded which references the prefix of the segments,
* allowing concatenation when a request is executed against the manifest.
*
* @param array $data {@see \OpenStack\ObjectStore\v1\Api::putObject}
* @param int $data['segmentSize'] The size in Bytes of each segment
* @param string $data['segmentContainer'] The container to which each segment will be uploaded
* @param string $data['segmentPrefix'] The prefix that will come before each segment. If omitted, a default
* is used: name/timestamp/filesize
*
* @return Object
*/
public function createLargeObject(array $data)
{
/** @var \Psr\Http\Message\StreamInterface $stream */
$stream = $data['stream'];
$segmentSize = isset($data['segmentSize']) ? $data['segmentSize'] : 1073741824;
$segmentContainer = isset($data['segmentContainer']) ? $data['segmentContainer'] : $this->name . '_segments';
$segmentPrefix = isset($data['segmentPrefix']) ? $data['segmentPrefix'] : sprintf("%s/%s/%d", $data['name'], microtime(true), $stream->getSize());
/** @var \OpenStack\ObjectStore\v1\Service $service */
$service = $this->getService();
if (!$service->containerExists($segmentContainer)) {
$service->createContainer(['name' => $segmentContainer]);
}
$promises = [];
$count = 0;
while (!$stream->eof() && $count < round($stream->getSize() / $segmentSize)) {
$promises[] = $this->model(Object::class)->createAsync(['name' => sprintf("%s/%d", $segmentPrefix, ++$count), 'stream' => new LimitStream($stream, $segmentSize, ($count - 1) * $segmentSize), 'containerName' => $segmentContainer]);
}
/** @var Promise $p */
$p = \GuzzleHttp\Promise\all($promises);
$p->wait();
return $this->createObject(['name' => $data['name'], 'objectManifest' => sprintf("%s/%s", $segmentContainer, $segmentPrefix)]);
}
/**
* @dataProvider requestList
*/
public function testQueueLimitsNumberOfProcessingRequests(array $queueData, $expectedDuration, $throttleLimit, $threshold = 0.05)
{
$handler = new HandlerStack(new LoopHandler());
$handler->push(ThrottleMiddleware::create());
$client = new \GuzzleHttp\Client(['handler' => $handler, 'base_uri' => Server::$url, 'timeout' => 10]);
$queueEnd = $promises = $responses = $expectedStart = [];
Server::start();
Server::enqueue(array_fill(0, count($queueData), new Response()));
foreach ($queueData as $queueItem) {
list($queueId, $requestDuration, $expectedStartTime) = $queueItem;
$options = [RequestOptions::HTTP_ERRORS => false, RequestOptions::HEADERS => ['duration' => $requestDuration], 'throttle_id' => $queueId, 'throttle_limit' => $throttleLimit];
$expectedStart[$queueId] = $expectedStartTime;
$promises[] = $client->getAsync('', $options)->then(function () use($queueId, &$queueStart, &$queueEnd) {
if (!isset($queueStart[$queueId])) {
$queueStart[$queueId] = microtime(true);
}
$queueEnd[$queueId] = microtime(true);
});
}
$start = microtime(true);
$GLOBALS['s'] = microtime(1);
\GuzzleHttp\Promise\all($promises)->wait();
$duration = microtime(true) - $start;
$this->assertGreaterThan($expectedDuration - $threshold, $duration);
$this->assertLessThan($expectedDuration + $threshold, $duration);
foreach ($queueEnd as $i => $endedAt) {
$duration = $endedAt - $start;
// $this->assertGreaterThan($expectedDuration - $threshold, $endedAt - $start, "Queue #$i started too soon");
// $this->assertLessThan($queueInfo->getExpectedDuration() + $threshold, $queueInfo->getDuration(), "Queue #$i started too late");
//
// $this->assertGreaterThan($started + $queueInfo->getExpectedDelay() - $threshold, $queueInfo->getStartedAt(), "Queue #$i popped too early");
// $this->assertLessThan($started + $queueInfo->getExpectedDelay() + $threshold, $queueInfo->getStartedAt(), "Queue #$i popped too late");
}
}
